Golden Fire Eel (Mastacembalus cf. unicolor ‘xanthic’)


An exceptionally rare color morph of freshwater spiny eel long assumed to be a Xanthic form of the Fire Eel (M. erythrotaenia), what is known as the Gold or Xanthic Fire Eel in the hobby may actually be the much more uncommon Mastacembelus unicolor, a variably patterned more elongated species which is found alongside Fire Eels in parts of their range. Due to their scarcity and high demand in the hobby, little is known about their wild habitat or where they are found but most specimens originate from Sumatra. With their striking, uniform yellow-gold coloration and outgoing nature these rare oddballs make for a one-of-a-kind centerpiece fish for true collectors.


Golden Fire Eel (Mastacembalus cf. unicolor xanthic’)

Origin: Wild Indonesia
Locale: Sumatra
Diet: Predator, feeds on fish, insects, and crustaceans in the wild.
Adult Size: 30″+
Recommended Tank Size: 120 gallon+
Compatibility: A predator but generally peaceful with any fish too large for them to consider food.

Preferred Water Parameters
pH:                          6.8 – 7.6
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm

Shipping Note: Due to size, the need for extra packing, and space requirements, larger sizes may not be eligible for our flat rate shipping. We strongly recommend shipping very large fish via air cargo when possible. Please contact us for a quote or for additional shipping info.